Tested, works well

Add a 64-bit check to the Firefox 60+ upload block

Temporarily disable uploading on Win Firefox 60+

 - add some kind of check to uploaded file

   NOTE: This doesn't fix issue with uploading file with FF 60 on Windows 10.

 - webrtc screenshare should not create another connection to red5 sc…

Redesign of screenshare select with win10 chrome warning

RaP: Scale to a square when generating slide images for pres. format

This improves the quality of portrait documents, before they were
1200px when landscape documents got 1600px.

Switching to scaling to a square means that we can use the "-scale-to"
option on pdftocaio, which means that it generates images directly
at the desired size. This can save quite a bit of time (and memory)
if a document was uploaded with extremely large page size.

RaP: Improve check for record events in archive, sanity scripts

There's some cases where you can get 0-duration recordings due to
recording event placement (e.g. a single recording event is the last
event in the events.xml). Detect these cases, and treat them like
no recording marks in the archive script (it will stop the recording
from being automatically processed).

I've also adjusted the sanity script to detect these cases and error
out. The recording processing scripts cannot handle 0-length recordings,
you have to manually edit the events. I've added a message to the
sanity log about this.

Support metadata with improper format

Change abs paths to use baseName config 

[HTML5 Client] Server-side timestamps in chat messages.

 - change log timestamp format so they are all the same

Rename function to be consistent with state name.

Hide connecting icon when screeshare is loaded.

Prevent whiteboard textarea flickering

Fix chat scroll bar and re-size handle overlap

Clear session storage to enter

Use Mac mic permission image everywhere, but Windows